Samsung, still in the midst of a major recall involving its new Galaxy Note 7 smartphone, seemingly has another issue on its hands.

The U.S. Consumer Product Safety Commission (CPSC) said it is actively and cooperatively working with Samsung to address safety issues related to some of its top-load washing machines. The potentially faulty washers were manufactured between March 2011 and April 2016.

When it rains, it pours.

Samsung essentially echoed the same sentiments in a statement, adding that in rare cases, affected machines may experience abnormal vibrations that could pose a risk of personal injury or property damage when washing bedding as well as bulky or water-resistant items.

Neither the CPSC nor Samsung would say exactly which washing machines are affected. Instead, you’ll need to enter the 15-digit serial number located on the rear of the machine on Samsung’s website to determine if yours may pose a risk. Samsung did stress that front-loading machines aren’t impacted.

Earlier this year, Samsung fielded a class-action lawsuit from customers that said their Samsung washing machines had exploded. According to ABC News, there have been 21 reports of machines exploding since early last year.

In the interim, Samsung recommends affected users wash all bedding, waterproof and bulky items on the delicate cycle until a permanent solution is ready.